656.21  Isoimmunization from other and unspecified blood-group incompatibility, delivered, with or without mention of...

ICD-9-CM Vol. 1 Diagnostic Codes

656.21 - Isoimmunization from other and unspecified blood-group incompatibility, delivered, with or without mention of antepartum condition

The above description is abbreviated. This code description may also have Includes, Excludes, Notes, Guidelines, Examples and other information. Access to this feature is available in the following products: Find-A-Code Essentials Find-A-Code Professional/Premium/Elite Find-A-Code Facility Base/Plus/Complete HCC Standard/Pro The above description is abbreviated. This code description may also have Includes, Excludes, Notes, Guidelines, Examples and other information. sign INsign UP

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Nonspecific Code

This is an nonspecific code.  Your claim COULD be suspended (held up) by insurance companies or third-party payors for further documentation before payment is made.  Also, payment COULD be denied because payors may not be able to determine 'medical necessity' because the code is too generic.  Use EXTREME caution when using this code.  A specific code is a better choice!  If there is no better choice, however, it is always best to review documentation or even consult the physician BEFORE using this code to make sure that you have been as specific as you possibly can.

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